Tire rim



1,439,256 D. MORIARTY.

I `T|R R|M. FILED Aus. 4. 1922,

l N VEN TOR. A/v/a Mom/Afr ry A TTORNEYS.

Patented een i9, i922a 'tra OFFICE:

DANIEL ivioiarnia'rY, orfonnnaiwi), CALIFORNIA.

Tiiin mit.`

Application filed August 4f, 1922. SeraINo. 579,705. K-

` To all whom may concern l ABe it known that l,`DAN'inL MoniARTY, a citizen .of-the .United States, and a resident of Oakland, county of Alameda, and State of California, have invented anewand usef ful Tire Rim, vof which the following is a specification.

Thepresent invention relates to improveyments. in tire rims and its particular object is to provide rim which allows of ventilation of the inner tube whereby the latter is prevented from over-heating. This is of par- .ticular importance 'where metal portions are y used in the construction of the'tire but` it is not desired to limit the present application toy that specic construction. The invention is thereforeillustrated in connectionwith an ordinarytire in common use.

The preferred form of the inventionis kshown in the accompanying drawing in which Figure l represents a cross section through the circumferential portion of y ,a wheel having a pneumatic tire thereon, Figure Q a longitudinal section through the tire 1Thefriinselected for the purpose of this rim and Figure v3 a plan view of a netting used` in connection g with my invention.`

illustration may be of any suitable the arrangeinent.being preferably such that the two beads (fr) of the tire leave ya rspace be tween them vwhich allows the inner tube to come in direct `contact with the rimas shown in the drawing. Thelrimmay be secured to the felloe in any suitable manner, as for instance, by thevfixe'dring (Y) lhaving a flange (Sfon one side;` and a' removable iangev (9)""at thejother side adapted to be heldiny place bythe lockingringl (11), y

The novel 'feature of myl device consists in the perforation (l2) in the rim channel. A

plurality of these perforationsmay` be provided, preferably lin the central portion of the rim and their object is `to allow airto enter and tocome in contalctwith the inner tube. To prevent the inner tube from bulging outwardly through the 4perforations I vprovide a perforated cover v(l5) for the perforations, preferably made of wire netting.v

.if the rim lies flat; against the felloe the latter should be perforated in a similar manner as shown at (13). channel is provided Withprojections (14) If, however, therini as shown in the drawings which'l'eave an airl l spare `between the rim andthe felloe, the' f perforations (13) is not necessary l The advantage lof the perforations in the rim will be readily understood. They allow vair to circulate aroundl the tube which circulationy increases the speed lof the rvehicle increases and serves to keep the tire cool. l claim: f f l. ln combination, the felly having circurnferentially spaced openings or perforations arranged ,centrally thereof, au pneumatic tire mounted upon the rim, a separate reticulated closure for each opening, and meansffor admitting air to the innerend of said openings whereby-to provide ventilation for the Vpneumatic tire forv the purpose described.

2. lin combination, a folly, a perforated tire rim mounted upon the felly, a pneumatic tire carriedby said rim, and means for'hold a felly, a tire rim upon y l ing the inner periphery of the rim in spaced relation with the outer periphery of the fellyl whereby to i permit l ventilation of the pneumatic ytire for the purpose described.v

f 3. lnv combination, a felly, a tire rim sup V l' ported by the-felly having circumferentially arranged perforationstherein, said perforations occurring centrally of the rim, a pneu` matic tire mounted upon said rim,-and means I upon the inner periphery of they rim adapted to hold the same in spaced relation with the outer periphery of the felly andthereby pro-. `vic'lii'igventilation for thepneuinatic tirefor the ypurpose described.

\ y DANIEL Moiimirrr.` 

